(300*х-72)/7=96+108
300x -72/7 = 204 /*7
300x - 72 = 204 * 7
300x = 1428 + 72
300x = 1500 /: 300
x= 5
(300*х-72)/7=96+108
300x -72/7 = 204 /*7
300x - 72 = 204 * 7
300x = 1428 + 72
300x = 1500 /: 300
x= 5